Why Modern RAG Apps Need Structured PDF Parsing, Not Simple Text Extraction

Simple text extraction from PDFs is crippling modern RAG applications—the real challenge is understanding document layout and structure. Markdown has emerged as the standard ingestion format because it preserves hierarchical information, while developers must choose between cost-effective local engines like Docling or more capable but expensive Vision-Language Models. This shift to layout-aware parsing is critical because it directly determines whether your LLM accesses meaningful context or garbage data.